阅读说明：本技术 一种铅笔削制装置 (Pencil sharpening device ) 是由 李洪洲 张其久 陈亮亮 程智渠 阴子昊 于 2020-05-11 设计创作，主要内容包括：本发明属于铅笔削制技术领域,尤其涉及一种铅笔削制装置,克服了目前现有削铅笔装置削制效率低、劳动量大的问题；包括给入单元、进给单元、压紧单元、切削单元、收集单元和支撑单元；所述给入单元设置在进给单元的右侧上端,所述压紧单元设置在进给单元的上部,切削单元设置在压紧单元的前侧,收集单元设置在进给单元的左侧。(The invention belongs to the technical field of pencil sharpening, and particularly relates to a pencil sharpening device, which solves the problems of low sharpening efficiency and large labor capacity of the existing pencil sharpening device; comprises a feeding unit, a pressing unit, a cutting unit, a collecting unit and a supporting unit; the feeding unit is arranged at the upper end of the right side of the feeding unit, the pressing unit is arranged at the upper part of the feeding unit, the cutting unit is arranged at the front side of the pressing unit, and the collecting unit is arranged at the left side of the feeding unit.)

1. A device is cut to pencil which characterized in that: comprises a feeding unit (1), a feeding unit (2), a pressing unit (3), a cutting unit (4), a collecting unit (5) and a supporting unit (6); the feeding unit (1) is arranged at the upper end of the right side of the feeding unit (2), the pressing unit (3) is arranged at the upper part of the feeding unit (2), the cutting unit (4) is arranged at the front side of the pressing unit (3), and the collecting unit (5) is arranged at the left side of the feeding unit (2).

2. A pencil sharpening device according to claim 1, characterized in that: the supporting unit (6) comprises an upper top plate (601), a fastening bolt (602), a supporting column (603), a foot support (604) and a lower bottom plate (605); the upper top plate (601) is fixedly connected with the upper ends of four support columns (603) through fastening bolts (602); the lower bottom plate (605) is fixedly connected with the lower ends of the four support columns (603) through bolts, and the upper surface of the upper top plate (601) is parallel to the upper surface of the lower bottom plate (605); the four foot supports (604) are fixedly connected with the lower surfaces of the four corners of the lower bottom plate (605) through bolts.

3. A pencil sharpening device according to claim 1, characterized in that: the feeding unit (1) comprises a Y-shaped feeding hopper (101), an inclined support rod (102), a fixed bottom plate (103), a straight support rod (104), a pushing platform (105), a hydraulic cylinder (106), a laser sensor (107) and a pushing slide block (108); the Y-shaped feeding hopper (101) penetrates through the rectangular through hole of the upper top plate (601) and is fixed on the upper top plate (601) through a bolt; the laser sensor (107) is fixedly arranged at the side position of the Y-shaped feeding hopper (101), and the laser sensor (107) is connected with the controller (8) through a wire; the hydraulic cylinder (106) is fixedly coupled to the upper surface of the pushing platform (105); the pushing sliding block (108) is fixedly connected with the front end of an extension rod of the hydraulic cylinder (106) through threads, and the lower surface of the pushing sliding block (108) is in contact with the upper surface of the left side of the pushing platform (105); the upper ends of the two inclined supporting rods (102) are welded on the lower surface of the left side of the pushing platform (105), and the lower ends of the two inclined supporting rods (102) are welded on the upper surface of the left side of the fixed bottom plate (103); the upper ends of the two straight supporting rods (104) are welded on the lower surface of the right side of the pushing platform (105), and the lower ends of the two straight supporting rods (104) are welded on the upper surface of the right side of the fixed bottom plate (103); the lower surface of the fixed bottom plate (103) is parallel to the upper surface of the pushing platform (105).

4. A pencil sharpening device according to claim 1, characterized in that: the feeding unit (2) comprises a No. 1 rolling bearing (201), a No. 1 bearing support frame (202), a retainer (203), a belt support plate (204), a No. 1 belt pulley (205), a belt (206), a fixing bolt (207), a motor fixing frame (208), a motor support seat (209), a stepping motor (210), a motor output shaft (211), a transmission shaft (212), a No. 2 belt pulley (213), a No. 2 bearing support frame (214), a driven shaft (215) and a No. 2 rolling bearing (216);

the two ends of the transmission shaft (212) are respectively provided with a No. 1 rolling bearing (201), the No. 1 rolling bearing (201) is arranged in a bearing hole of a No. 1 bearing support frame (202), and the middle part of the transmission shaft (212) is fixedly connected with a No. 1 belt pulley (205) through a flat key; the No. 1 bearing support frame (202) is fixed on the upper surface of the lower bottom plate (605) through bolts; the motor output shaft (211) is connected with the transmission shaft (212) through a coupler; the No. 2 bearing support frame (214) is fixedly installed on the upper surface of the lower bottom plate (605), No. 2 rolling bearings (216) are installed at two ends of the driven shaft (215) respectively, and the No. 2 rolling bearings (216) are installed in bearing holes of the No. 2 bearing support frame (214); the No. 2 belt pulley (213) is fixedly arranged on the driven shaft (215) through a flat key;

the belt (206) is sleeved on the No. 1 belt pulley (205) and the No. 2 belt pulley (213); the upper ends of the four holding frames (203) are fixedly connected with a belt supporting plate (204) through screws, and the lower ends of the four holding frames (203) are fixed on the upper surface of a lower bottom plate (605); the upper surface of the belt supporting plate (204) is in contact with the lower surface of the upper turning part of the belt (206);

the stepping motor (210) is fixed on the motor fixing frame (208); the motor fixing frame (208) is connected to the motor supporting seat (209) through a fixing bolt (207).

5. A pencil sharpening device according to claim 1, characterized in that: the pressing unit (3) comprises three pressing adjusting mechanisms with the same structure, a flat extrusion plate (303) and an inclined extrusion plate (304); the three pressing adjusting mechanisms are sequentially arranged on the lower surface of the upper top plate (601);

the two flat extrusion plates (303) are respectively and fixedly arranged at the lower ends of telescopic shafts (308) of the pressing and adjusting mechanisms positioned in the middle and on the left side through bolts; the lower surfaces of the two flat extrusion plates (303) are vertical to the axes of telescopic shafts (308) of the pressing and adjusting mechanisms positioned in the middle and on the left;

the inclined extrusion plate (304) is fixedly arranged at the lower end of a telescopic shaft (308) of the pressing and adjusting mechanism on the right side through bolts; the lower surface of the inclined extrusion plate (304) is vertical to the axis of a telescopic shaft (308) of the pressing and adjusting mechanism on the right side; the right end of the lower surface of the inclined extrusion plate (304) is provided with an inclination angle which is 10 degrees to 60 degrees with the lower surface.

6. A pencil sharpening device according to claim 5, wherein: the pressing adjusting mechanism comprises a nut (301), a spring (302), a guide pin (305), a bolt (307), a telescopic shaft (308) and a guide sleeve (306); the middle part of the upper top plate (601) is provided with three through holes, and the central lines of the three through holes are positioned in the same plane and are parallel to each other; the telescopic shaft (308) penetrates through a through hole of the upper top plate (601), and the telescopic shaft and the upper top plate are in clearance fit; the nut (301) is screwed in a threaded section at the upper end of the telescopic shaft (308), and the nut (301) is positioned at the upper part of the upper top plate (601); the spring (302) is sleeved on the upper half optical axis section of the telescopic shaft (308), and the upper end of the spring (302) is in contact with the lower surface of the upper top plate (601); the lower end of the spring (302) is in surface contact with an upper step of a guide section (3081) of the lower half part of the telescopic shaft (308); the outer diameter of the spring (302) is smaller than the diameter of the guide section (3081); the guide pin (305) is arranged in a pin hole of a guide section (3081) of the telescopic shaft (308), and the axis of the guide pin (305) passes through and is perpendicular to the axis of the telescopic shaft (308); the end part of the guide pin (305) is inserted into the long hole of the guide sleeve (306) and can slide in the long hole of the guide sleeve (306); the telescopic shaft (308) is installed in an inner hole of the guide sleeve (306), and a guide section (3081) of the telescopic shaft (308) is in clearance fit with the inner hole of the guide sleeve (306).

7. A pencil sharpening device according to claim 1, characterized in that:

the cutting unit (4) comprises an upper tool rest (401), a middle tool rest (402), a lower tool rest (403), an inclination angle sensor (404), a No. 1 abrasive belt transmission wheel (406), a No. 2 locking nut (407), an abrasive belt (408), a motor supporting seat (409), a servo motor (410), an abrasive belt transmission shaft (411), an adjusting screw rod (412), a guide rod (413), an upper adjusting nut (414), a lower adjusting nut (415), a No. 2 abrasive belt transmission wheel (416), an adjusting shaft (417) and a taper adjusting mechanism;

the screw rod (412) is welded at the central position of the upper surface of the upper tool rest (401); the axis of the screw rod (412) is vertical to the upper surface of the upper tool rest (401); the screw rod (412) penetrates through a through hole in the upper top plate (601), the lower adjusting nut (415) is screwed on the screw rod (412), and the upper surface of the lower adjusting nut (415) is in contact with the lower surface of the upper top plate (601); the upper adjusting nut (414) is screwed on the screw rod (412), and the lower surface of the upper adjusting nut (414) is in contact with the upper surface of the upper top plate (601); the two guide rods (413) are fixedly arranged on the left side and the right side of the upper surface of the upper tool rest (401) respectively, and the axes of the two guide rods (413) are perpendicular to the upper surface of the upper tool rest (401); the two guide rods (413) respectively penetrate through holes of the upper top plate (601), and are in clearance fit to play a role in guiding; the upper tool rest (401) and the middle tool rest (402) are welded into a whole; the upper end of the rear side of the lower tool rest (403) is connected with the lower end of the rear side of the middle tool rest (402) through a hinge;

an arc strip through hole is formed in the left side of the lower tool rest (403) and used for penetrating through the adjusting shaft (417), and the arc strip through hole is in clearance fit with the adjusting shaft (417); the No. 1 abrasive belt transmission wheel (406) is fixedly connected with the middle part of the adjusting shaft (417) through a flat key, and the No. 2 locking nut (407) is screwed on the front side thread section of the adjusting shaft (417);

the abrasive belt transmission shaft (411) is arranged in a through hole on the right side of the lower tool rest (403), and the No. 2 abrasive belt transmission wheel (416) is fixedly connected to the abrasive belt transmission shaft (411) through a flat key; the front end of the abrasive belt transmission shaft (411) is connected with a motor shaft of the servo motor (410) through a coupler; the servo motor (410) is fixed on the motor support seat (409) through a bolt; the rear end of the motor supporting seat (409) is fixed on the side surface of the front end of the lower tool rest (403) through a bolt; the abrasive belt (408) is sleeved on a No. 1 abrasive belt driving wheel (406) and a No. 2 abrasive belt driving wheel (416);

the inclination angle sensor (404) is arranged on the lower surface of the left side of the lower tool rest (403); the inclination angle sensor (404) is in electric wire connection with the controller (8).

8. A pencil sharpening device according to claim 7, wherein: the taper adjusting mechanism comprises a lower screw (405), a No. 1 hinge (418), a No. 2 hinge (419), a No. 1 locking nut (420), a taper adjusting sleeve (421) and an upper screw (422); the upper screw rod (422) is connected with the lower surface of the front end of the middle tool rest (402) through a No. 2 hinge (419); the lower screw (405) is connected with the front side of the lower tool rest (403) through a No. 1 hinge (418); the thread turning direction of the lower end part of the upper screw rod (422) is opposite to that of the upper end part of the lower screw rod (405); the thread turning direction of the threaded hole at the upper end of the taper adjusting sleeve (421) is the same as that of the lower end of the upper screw (422); the No. 1 locking nut (420) is screwed on the thread section at the lower end part of the upper screw rod (422); the thread turning direction of the threaded hole at the lower end of the taper adjusting sleeve (421) is the same as that of the upper end of the lower screw (405).

9. A pencil sharpening device according to claim 1, characterized in that: the collecting unit (5) comprises a sloping plate (501) and a qualified product collecting box (502);

the left lower end of the inclined plate (501) is connected with the right side of the qualified product collecting box (502) through a hinge; the right upper end of the inclined plate (501) is arranged on the left side of the left revolution surface of the belt (206); the inclined plate (501) and the qualified product collecting box (502) are respectively fixed on the upper surface of the lower bottom plate (605).

Technical Field

The invention belongs to the technical field of pencil sharpening, and particularly relates to a pencil sharpening device.

Background

At present, with the rapid enhancement of the strength of China, various communication discussion activities become more common. Various major meetings occur almost every day, such as business meetings, hotel meetings, academic conferences, and the like. These meetings are tens of people in small numbers and thousands of people in large numbers. In these meetings, the contractor often prepares at least one pencil for the participants at the meeting location, which may require as many as several thousand pencils, because of the advantages of low cost, ease of labeling and modification. Before meeting, workers need to use manual work or a pencil sharpening machine to sharpen the pencil. However, the existing pencil cutting machine can only cut one pencil, continuous cutting cannot be realized, the production efficiency is low, and the workload of workers is large. Therefore, the development of the pencil sharpening device capable of continuously sharpening the pencils has important practical significance.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the problem that the existing pencil sharpening efficiency is low is solved, and a pencil sharpening device is provided.

In order to solve the technical problems, the invention is realized by adopting the following technical scheme, which is described by combining the accompanying drawings as follows:

a pencil sharpening device comprises a feeding unit (1), a feeding unit (2), a pressing unit (3), a cutting unit (4), a collecting unit (5) and a supporting unit (6); the feeding unit (1) is arranged at the upper end of the right side of the feeding unit (2), the pressing unit (3) is arranged at the upper part of the feeding unit (2), the cutting unit (4) is arranged at the front side of the pressing unit (3), and the collecting unit (5) is arranged at the left side of the feeding unit (2).

In the technical scheme, the supporting unit (6) comprises an upper top plate (601), a fastening bolt (602), a supporting column (603), a foot support (604) and a lower bottom plate (605); the upper top plate (601) is fixedly connected with the upper ends of four support columns (603) through fastening bolts (602); the lower bottom plate (605) is fixedly connected with the lower ends of the four support columns (603) through bolts, and the upper surface of the upper top plate (601) is parallel to the upper surface of the lower bottom plate (605); the four foot supports (604) are fixedly connected with the lower surfaces of the four corners of the lower bottom plate (605) through bolts.

In the technical scheme, the feeding unit (1) comprises a Y-shaped feeding hopper (101), an inclined support rod (102), a fixed bottom plate (103), a straight support rod (104), a pushing platform (105), a hydraulic cylinder (106), a laser sensor (107) and a pushing slide block (108); the Y-shaped feeding hopper (101) penetrates through the rectangular through hole of the upper top plate (601) and is fixed on the upper top plate (601) through a bolt; the laser sensor (107) is fixedly arranged at the side position of the Y-shaped feeding hopper (101), and the laser sensor (107) is connected with the controller (8) through a wire; the hydraulic cylinder (106) is fixedly coupled to the upper surface of the pushing platform (105); the pushing sliding block (108) is fixedly connected with the front end of an extension rod of the hydraulic cylinder (106) through threads, and the lower surface of the pushing sliding block (108) is in contact with the upper surface of the left side of the pushing platform (105); the upper ends of the two inclined supporting rods (102) are welded on the lower surface of the left side of the pushing platform (105), and the lower ends of the two inclined supporting rods (102) are welded on the upper surface of the left side of the fixed bottom plate (103); the upper ends of the two straight supporting rods (104) are welded on the lower surface of the right side of the pushing platform (105), and the lower ends of the two straight supporting rods (104) are welded on the upper surface of the right side of the fixed bottom plate (103); the lower surface of the fixed bottom plate (103) is parallel to the upper surface of the pushing platform (105).

In the technical scheme, the feeding unit (2) comprises a No. 1 rolling bearing (201), a No. 1 bearing support frame (202), a retainer (203), a belt support plate (204), a No. 1 belt pulley (205), a belt (206), a fixing bolt (207), a motor fixing frame (208), a motor support seat (209), a stepping motor (210), a motor output shaft (211), a transmission shaft (212), a No. 2 belt pulley (213), a No. 2 bearing support frame (214), a driven shaft (215) and a No. 2 rolling bearing (216);

the two ends of the transmission shaft (212) are respectively provided with a No. 1 rolling bearing (201), the No. 1 rolling bearing (201) is arranged in a bearing hole of a No. 1 bearing support frame (202), and the middle part of the transmission shaft (212) is fixedly connected with a No. 1 belt pulley (205) through a flat key; the No. 1 bearing support frame (202) is fixed on the upper surface of the lower bottom plate (605) through bolts; the motor output shaft (211) is connected with the transmission shaft (212) through a coupler; the No. 2 bearing support frame (214) is fixedly installed on the upper surface of the lower bottom plate (605), No. 2 rolling bearings (216) are installed at two ends of the driven shaft (215) respectively, and the No. 2 rolling bearings (216) are installed in bearing holes of the No. 2 bearing support frame (214); the No. 2 belt pulley (213) is fixedly arranged on the driven shaft (215) through a flat key;

the belt (206) is sleeved on the No. 1 belt pulley (205) and the No. 2 belt pulley (213); the upper ends of the four holding frames (203) are fixedly connected with a belt supporting plate (204) through screws, and the lower ends of the four holding frames (203) are fixed on the upper surface of a lower bottom plate (605); the upper surface of the belt supporting plate (204) is in contact with the lower surface of the upper turning part of the belt (206);

the stepping motor (210) is fixed on the motor fixing frame (208); the motor fixing frame (208) is connected to the motor supporting seat (209) through a fixing bolt (207).

In the technical scheme, the pressing unit (3) comprises three pressing adjusting mechanisms with the same structure, a flat extrusion plate (303) and an inclined extrusion plate (304); the three pressing adjusting mechanisms are sequentially arranged on the lower surface of the upper top plate (601);

the two flat extrusion plates (303) are respectively and fixedly arranged at the lower ends of telescopic shafts (308) of the pressing and adjusting mechanisms positioned in the middle and on the left side through bolts; the lower surfaces of the two flat extrusion plates (303) are vertical to the axes of telescopic shafts (308) of the pressing and adjusting mechanisms positioned in the middle and on the left;

the inclined extrusion plate (304) is fixedly arranged at the lower end of a telescopic shaft (308) of the pressing and adjusting mechanism on the right side through bolts; the lower surface of the inclined extrusion plate (304) is vertical to the axis of a telescopic shaft (308) of the pressing and adjusting mechanism on the right side; the right end of the lower surface of the inclined extrusion plate (304) is provided with an inclination angle which is 10 degrees to 60 degrees with the lower surface.

In the technical scheme, the pressing adjusting mechanism comprises a nut (301), a spring (302), a guide pin (305), a bolt (307), a telescopic shaft (308) and a guide sleeve (306); the middle part of the upper top plate (601) is provided with three through holes, and the central lines of the three through holes are positioned in the same plane and are parallel to each other; the telescopic shaft (308) penetrates through a through hole of the upper top plate (601), and the telescopic shaft and the upper top plate are in clearance fit; the nut (301) is screwed in a threaded section at the upper end of the telescopic shaft (308), and the nut (301) is positioned at the upper part of the upper top plate (601); the spring (302) is sleeved on the upper half optical axis section of the telescopic shaft (308), and the upper end of the spring (302) is in contact with the lower surface of the upper top plate (601); the lower end of the spring (302) is in surface contact with an upper step of a guide section (3081) of the lower half part of the telescopic shaft (308); the outer diameter of the spring (302) is smaller than the diameter of the guide section (3081); the guide pin (305) is arranged in a pin hole of a guide section (3081) of the telescopic shaft (308), and the axis of the guide pin (305) passes through and is perpendicular to the axis of the telescopic shaft (308); the end part of the guide pin (305) is inserted into the long hole of the guide sleeve (306) and can slide in the long hole of the guide sleeve (306); the telescopic shaft (308) is installed in an inner hole of the guide sleeve (306), and a guide section (3081) of the telescopic shaft (308) is in clearance fit with the inner hole of the guide sleeve (306).

In the technical scheme, the cutting unit (4) comprises an upper tool rest (401), a middle tool rest (402), a lower tool rest (403), an inclination angle sensor (404), a No. 1 abrasive belt transmission wheel (406), a No. 2 locking nut (407), an abrasive belt (408), a motor support seat (409), a servo motor (410), an abrasive belt transmission shaft (411), an adjusting screw rod (412), a guide rod (413), an upper adjusting nut (414), a lower adjusting nut (415), a No. 2 abrasive belt transmission wheel (416), an adjusting shaft (417) and a taper adjusting mechanism;

the screw rod (412) is welded at the central position of the upper surface of the upper tool rest (401); the axis of the screw rod (412) is vertical to the upper surface of the upper tool rest (401); the screw rod (412) penetrates through a through hole in the upper top plate (601), the lower adjusting nut (415) is screwed on the screw rod (412), and the upper surface of the lower adjusting nut (415) is in contact with the lower surface of the upper top plate (601); the upper adjusting nut (414) is screwed on the screw rod (412), and the lower surface of the upper adjusting nut (414) is in contact with the upper surface of the upper top plate (601); the two guide rods (413) are fixedly arranged on the left side and the right side of the upper surface of the upper tool rest (401) respectively, and the axes of the two guide rods (413) are perpendicular to the upper surface of the upper tool rest (401); the two guide rods (413) respectively penetrate through holes of the upper top plate (601), and are in clearance fit to play a role in guiding; the upper tool rest (401) and the middle tool rest (402) are welded into a whole; the upper end of the rear side of the lower tool rest (403) is connected with the lower end of the rear side of the middle tool rest (402) through a hinge;

an arc strip through hole is formed in the left side of the lower tool rest (403) and used for penetrating through the adjusting shaft (417), and the arc strip through hole is in clearance fit with the adjusting shaft (417); the No. 1 abrasive belt transmission wheel (406) is fixedly connected with the middle part of the adjusting shaft (417) through a flat key, and the No. 2 locking nut (407) is screwed on the front side thread section of the adjusting shaft (417);

the abrasive belt transmission shaft (411) is arranged in a through hole on the right side of the lower tool rest (403), and the No. 2 abrasive belt transmission wheel (416) is fixedly connected to the abrasive belt transmission shaft (411) through a flat key; the front end of the abrasive belt transmission shaft (411) is connected with a motor shaft of the servo motor (410) through a coupler; the servo motor (410) is fixed on the motor support seat (409) through a bolt; the rear end of the motor supporting seat (409) is fixed on the side surface of the front end of the lower tool rest (403) through a bolt; the abrasive belt (408) is sleeved on a No. 1 abrasive belt driving wheel (406) and a No. 2 abrasive belt driving wheel (416);

the inclination angle sensor (404) is arranged on the lower surface of the left side of the lower tool rest (403); the inclination angle sensor (404) is in electric wire connection with the controller (8).

In the technical scheme, the taper adjusting mechanism comprises a lower screw (405), a No. 1 hinge (418), a No. 2 hinge (419), a No. 1 locking nut (420), a taper adjusting sleeve (421) and an upper screw (422); the upper screw rod (422) is connected with the lower surface of the front end of the middle tool rest (402) through a No. 2 hinge (419); the lower screw (405) is connected with the front side of the lower tool rest (403) through a No. 1 hinge (418); the thread turning direction of the lower end part of the upper screw rod (422) is opposite to that of the upper end part of the lower screw rod (405); the thread turning direction of the threaded hole at the upper end of the taper adjusting sleeve (421) is the same as that of the lower end of the upper screw (422); the No. 1 locking nut (420) is screwed on the thread section at the lower end part of the upper screw rod (422); the thread turning direction of the threaded hole at the lower end of the taper adjusting sleeve (421) is the same as that of the upper end of the lower screw (405).

In the technical scheme, the collecting unit (5) comprises an inclined plate (501) and a qualified product collecting box (502);

the left lower end of the inclined plate (501) is connected with the right side of the qualified product collecting box (502) through a hinge; the right upper end of the inclined plate (501) is arranged on the left side of the left revolution surface of the belt (206); the inclined plate (501) and the qualified product collecting box (502) are respectively fixed on the upper surface of the lower bottom plate (605).

Compared with the prior art, the invention has the beneficial effects that:

1. according to the pencil sharpening device, the pencil automatically rolls forwards to realize the linear feeding motion and the circular feeding motion of the pencil, the abrasive belt rotates at a high speed to realize the high-speed sharpening motion, namely the feeding motion and the sharpening motion are respectively completed by the pencil and the abrasive belt, so that the pencil sharpening process is continuous, and compared with a traditional pencil sharpener and a common manual pencil sharpening process, the production efficiency is improved;

2. the pencil sharpening device provided by the invention adopts the hydraulic cylinder to drive the pushing slide block to push the pencil to the feeding unit at a certain beat, so that the pencil is automatically fed in order.

3. When the three pressing and adjusting mechanisms of the pencil sharpening device work, only one pencil is arranged between each pressing and adjusting mechanism and the belt, so that the flat extrusion plate or the inclined extrusion plate can reliably press the pencil on the belt; because the self-adaptive adjustment range of the spring of the pressing adjusting mechanism is large, when the diameter error of the pencil is large, the pencil can be pressed on the belt;

4. when the belt supporting plate of the pencil sharpening device is used for sharpening a pencil, the pencil is subjected to downward cutting component force of the abrasive belt, the belt moves downwards due to the cutting component force, the belt supporting plate supports the belt and cannot generate downward displacement deformation, and the pencil point sharpening consistency of the pencil is ensured;

5. the cutting unit of the pencil sharpening device can adjust the upper position and the lower position of the abrasive belt, so that the position of a point where pencil sharpening starts to be cut is adjusted; the angle adjustment of the abrasive belt in the advancing direction of the pencil can be adjusted, so that the adjustment of the sharpening feeding amount of the pencil is realized; the taper adjusting mechanism adjusts the taper of the pencil.

Drawings

FIG. 1 is a schematic axial side view of a pencil sharpener of the present invention;

FIG. 2 is a schematic projection view of a pencil sharpener of the present invention with the top plate removed;

fig. 3 is a schematic axial side view of the feed unit of a pencil sharpener according to the present invention;

fig. 4 is a schematic view of a push slider part of an infeed unit of a pencil sharpener according to the present invention;

FIG. 5 is a rear perspective view of the feeding unit of FIG. 1 in a perspective view according to the present invention;

FIG. 6 is a schematic axial projection view of a pressing unit of the pencil sharpening device according to the present invention;

fig. 7 is a schematic view of the internal structure of a pressing unit of the pencil sharpening device according to the present invention;

fig. 8 is a front projection view of a pressing unit of the pencil sharpening device according to the present invention;

fig. 9 is a schematic axial projection view of a cutting unit of the pencil sharpening device according to the present invention;

FIG. 10 is a schematic view of a front-to-back adjustment mechanism of a pencil sharpener of the present invention;

FIG. 11 is a schematic view of a left-right tilt adjustment mechanism of the pencil sharpener of the present invention;

fig. 12 is a partial schematic view of a supporting unit of a pencil sharpening device according to the present invention;

fig. 13 is a schematic axial projection view of a collecting unit of the pencil sharpening device according to the present invention;

fig. 14 is a partial schematic view of the lower tool holder of the cutting unit of a pencil sharpening device according to the present invention;

fig. 15 is a schematic view of the working principle of the pencil sharpening device according to the present invention.

In the figure:

1. a feeding unit, 101, a Y-shaped feeding hopper, 102, an inclined supporting rod, 103, a fixed bottom plate, 104, a straight supporting rod, 105, a pushing platform, 106, a hydraulic cylinder, 107, a laser sensor, 108, a pushing slide block, 2, a feeding unit, No. 201.1 rolling bearings, No. 202.1 bearing supporting frames, 203, a retainer, 204, a belt supporting plate, No. 205.1 belt pulleys, 206, a belt, 207, a fixing bolt, 208, a motor fixing frame, 209, a motor supporting seat, 210, a stepping motor, 211, a motor output shaft, 212, a transmission shaft, No. 213.2 belt pulleys, No. 214.2 bearing supporting frames, 215, a driven shaft, No. 216.2 rolling bearings, 3, a pressing unit, 301, a nut, 302, a spring, 303, a flat extrusion plate, 304, an inclined extrusion plate, 305, a guide pin, 306, a guide sleeve, 307, a bolt, 308, a telescopic shaft, 3081, a guide section, 4, a cutting unit, 401, an upper tool rest, 402, a, 403. the device comprises a lower tool rest, 404, an inclination angle sensor, 405, a lower screw, 406.1 abrasive belt transmission wheel, 407.2 locking nut, 408 abrasive belt, 409 motor support seat, 410 servo motor, 411 abrasive belt transmission shaft, 412 adjusting screw rod, 413 guide rod, 414 upper adjusting nut, 415 lower adjusting nut, 416.2 abrasive belt transmission wheel, 417 adjusting shaft, 418.1 hinge, 419.2 hinge, 420.1 locking nut, 421 taper adjusting sleeve, 422 upper screw, 5 collecting unit, 501 sloping plate, 502 qualified product collecting box, 6 supporting unit, 601 upper top plate, 602 fastening bolt, 603 supporting column, 604 foot support, 605 lower bottom plate.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

it should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention:

referring to fig. 1 and 2, the pencil sharpening device according to the present invention includes a feeding unit 1, a feeding unit 2, a pressing unit 3, a cutting unit 4, a collecting unit 5, and a supporting unit 6. The feeding unit 1 is disposed at the right upper end of the feeding unit 2, the pressing unit 3 is disposed at the upper portion of the feeding unit 2, the cutting unit 4 is disposed at the front side of the pressing unit 3, and the collecting unit 5 is disposed at the left side of the feeding unit 2.

A support unit

Referring to fig. 1, 2 and 12, the supporting unit 6 includes an upper top plate 601, a fastening bolt 602, a supporting column 603, a foot support 604 and a lower bottom plate 605;

the upper top plate 601 is fixedly connected with the upper ends of four support columns 603 through fastening bolts 602; the lower bottom plate 605 is fixedly connected with the lower ends of the four support columns 603 through bolts, and the upper surface of the upper top plate 601 is parallel to the upper surface of the lower bottom plate 605; the four foot supports 604 are fixedly connected to the lower surfaces of the four corners of the lower plate 605 by bolts.

Two, feeding unit

Referring to fig. 1, 3 and 4, the feeding unit 1 includes a Y-shaped feeding hopper 101, an inclined support rod 102, a fixed bottom plate 103, a straight support rod 104, a pushing platform 105, a hydraulic cylinder 106, a laser sensor 107 and a pushing slide 108.

Referring to fig. 1, 3 and 12, the Y-shaped feeding hopper 101 penetrates through a rectangular through hole of the upper top plate 601 and is fixed on the upper top plate 601 through a bolt;

referring to fig. 3 and 4, the laser sensor 107 is fixedly mounted at the side position of the Y-shaped feeding hopper 101, the laser sensor 107 is connected with the controller 8 through an electric wire, and when the pencil 7 falls down along a channel with a rectangular cross section in the Y-shaped feeding hopper 101, the laser sensor 107 detects the pencil 7 and transmits information to the controller 8; the hydraulic cylinder 106 is fixedly coupled to the upper surface of the pushing platform 105; the pushing slide block 108 is fixedly connected with the front end of the extending rod of the hydraulic cylinder 106 through threads, the lower surface of the pushing slide block 108 is contacted with the upper surface of the left side of the pushing platform 105, the minimum distance between the upper surface of the pushing slide block 108 and the lower end surface of the Y-shaped feeding hopper 101 is 0.3mm, the maximum distance is 1mm, when the pencil 7 falls on the upper surface of the pushing platform 105, the pushing slide block 108 is driven by the hydraulic cylinder 106 to push the pencil 7 to move from right to left to the upper surface of the belt 206, at this time, the next pencil 7 in the channel of the Y-shaped feeding hopper 101 cannot fall due to being supported by the upper surface of the pushing slide block 108, when the pushing slide 108 is retracted to the right side of the Y-shaped hopper 101 under the driving of the hydraulic cylinder 106, the next pencil 7 in the channel of the Y-shaped feeding hopper 101 just falls on the left side of the pushing slide block 108, and the pushing of the next pencil 7 is started;

referring to fig. 3 and 4, the upper ends of the two inclined support rods 102 are welded to the lower surface of the left side of the pushing platform 105, and the lower ends of the two inclined support rods 102 are welded to the upper surface of the left side of the fixed bottom plate 103; the upper ends of the two straight support rods 104 are welded on the lower surface of the right side of the pushing platform 105, and the lower ends of the two straight support rods 104 are welded on the upper surface of the right side of the fixed bottom plate 103; the lower surface of the fixed base plate 103 is parallel to the upper surface of the pushing platform 105.

Third, the feeding unit

Referring to fig. 2 and 5, the feeding unit 2 includes a No. 1 rolling bearing 201, a No. 1 bearing support frame 202, a holder 203, a belt support plate 204, a No. 1 belt pulley 205, a belt 206, a fixing bolt 207, a motor fixing frame 208, a motor support base 209, a stepping motor 210, a motor output shaft 211, a transmission shaft 212, a No. 2 belt pulley 213, a No. 2 bearing support frame 214, a driven shaft 215, and a No. 2 rolling bearing 216.

Referring to fig. 2 and 5, the number 1 rolling bearings 201 are respectively mounted at two ends of the transmission shaft 212, the number 1 rolling bearings 201 are mounted in bearing holes of the number 1 bearing support frame 202, and the middle part of the transmission shaft 212 is fixedly connected with the number 1 belt pulley 205 through a flat key; the No. 1 bearing support frame 202 is fixed on the upper surface of the lower bottom plate 605 through bolts; the motor output shaft 211 is connected with the transmission shaft 212 through a coupler;

the No. 2 bearing support frame 214 is fixedly installed on the upper surface of the lower bottom plate 605, No. 2 rolling bearings 216 are respectively installed at two ends of the driven shaft 215, and the No. 2 rolling bearings 216 are installed in bearing holes of the No. 2 bearing support frame 214; the No. 2 belt pulley 213 is fixedly arranged on the driven shaft 215 through a flat key;

referring to fig. 2 and 5, the belt 206 is sleeved on the pulley 205 No. 1 and the pulley 213 No. 2; the upper ends of the four holding frames 203 are fixedly connected with the belt supporting plate 204 through screws, and the lower ends of the four holding frames 203 are fixed on the upper surface of the lower bottom plate 605; the upper surface of the belt supporting plate 204 is smooth and contacts with the lower surface of the upper turning part of the belt 206; the pencil 7 is subjected to a downward cutting component of the abrasive belt 408 on the pencil 7 while moving along with the belt 206, the downward movement of the belt 206 is generated by the cutting component, and at the moment, the belt support plate 204 supports the belt 206, so that the downward movement of the belt 206 is avoided, and the consistency of the sharpening of the pencil 7 is ensured.

Referring to fig. 2 and 5, the stepping motor 210 is fixed on the motor fixing frame 208; the motor fixing frame 208 is connected to a motor supporting seat 209 through a fixing bolt 207;

referring to fig. 2 and 5, the motor support 209 is fixed on the lower base plate 605;

fourthly, pressing unit

Referring to fig. 1, 2, 6, 7 and 8, the pressing unit 3 includes three pressing adjustment mechanisms with the same structure, a flat pressing plate 303 and an inclined pressing plate 304;

the three pressing adjusting mechanisms are sequentially arranged on the lower surface of the upper top plate 601;

the compression adjustment mechanism includes a nut 301, a spring 302, a guide pin 305, a bolt 307, a telescopic shaft 308, and a guide sleeve 306.

Referring to fig. 1, 2, 6, 7 and 8, three through holes are formed in the middle of the upper top plate 601, and the center lines of the three through holes are located in the same plane and are parallel to each other; the telescopic shaft 308 penetrates through a through hole of the upper top plate 601, and the telescopic shaft and the upper top plate are in clearance fit; the nut 301 is screwed on the threaded section at the upper end of the telescopic shaft 308, and the nut 301 is positioned at the upper part of the upper top plate 601; the spring 302 is sleeved on the upper half optical axis section of the telescopic shaft 308, and the upper end of the spring 302 is in contact with the lower surface of the upper top plate 601; the lower end of the spring 302 is in surface contact with the upper step of the guide segment 3081 on the lower half part of the telescopic shaft 308; the outer diameter of the spring 302 is smaller than the diameter of the guide section 3081; the guide pin 305 is arranged in a pin hole of the guide section 3081 of the telescopic shaft 308, and the axis of the guide pin 305 passes through and is perpendicular to the axis of the telescopic shaft 308; the end of the guide pin 305 is inserted into the elongated hole of the guide sleeve 306 and can slide in the elongated hole of the guide sleeve 306; the telescopic shaft 308 is arranged in the inner hole of the guide sleeve 306, and the guide section 3081 of the telescopic shaft 308 is in clearance fit with the inner hole of the guide sleeve 306;

referring to fig. 6, the two flat extrusion plates 303 are respectively and fixedly mounted at the lower ends of the telescopic shafts 308 of the pressing and adjusting mechanisms located at the middle and left sides through bolts; the lower surfaces of the two flat extrusion plates 303 are vertical to the axes of the telescopic shafts 308 of the pressing and adjusting mechanisms positioned in the middle and on the left;

referring to fig. 6, the inclined pressing plate 304 is fixedly installed at the lower end of the telescopic shaft 308 of the pressing adjustment mechanism located at the right side by bolts; the lower surface of the inclined extrusion plate 304 is vertical to the axis of the telescopic shaft 308 of the compression adjusting mechanism on the right side; the right end of the lower surface of the inclined pressing plate 304 is provided with an inclination angle of 10-60 degrees with the lower surface, so that the pencil 7 can enter a gap between the lower surface of the inclined pressing plate 304 and the belt 206; the distance between the left side surface of the inclined extrusion plate 304 and the right side surface of the flat extrusion plate 303 positioned in the middle is 0.05-0.15 mm; the distance between the left side surface of the flat compression plate 303 positioned in the middle and the right side surface of the flat compression plate 303 positioned on the left side is 0.05 to 0.15 mm;

referring to fig. 2 and 6, when the pencil 7 moves from right to left under the driving of the belt 206, and the upper edge of the pencil 7 contacts the inclined surface of the inclined pressing plate 304, the pencil 7 starts to roll, and due to the guiding function of the inclined surface of the inclined pressing plate 304, the pencil 7 smoothly enters the gap between the lower surface of the inclined pressing plate 304 and the upper surface of the belt 206 and continues to roll; if a plurality of pencils 7 are simultaneously positioned between the lower surface of the inclined pressing plate 304 and the upper surface of the belt 206, the diameters of the pencils 7 are not completely equal due to the machining errors of the pencils 7, at this time, when the pencils 7 roll from right to left, it is impossible that all the pencils 7 are in contact with the inclined pressing plate 304 and the belt 206 at the same time, that is, in general, only one pencil 7 is in contact with the inclined pressing plate 304 and the belt 206 at the same time, so that some pencils 7 do not roll. Therefore, only one pencil 7 can be positioned between the inclined pressing plate 304 and the belt 206 at the same time. Meanwhile, when the pencil 7 (for example, when the pencil 7 is hexagonal) rotates, under the action of the spring 302 of the pressing adjustment mechanism, the pressing adjustment mechanism can adapt to the size of the pencil 7, so that the inclined pressing plate 304 is always pressed on the upper edge of the pencil 7, that is, a certain positive pressure is given to the belt 206 by the pencil 7, and the pencil 7 is driven by the belt 206 to roll and advance leftwards; while the pressing adjustment mechanism adapts to the size of the pencil 7, the inclined pressing plate 304 applies downward pressure to the pencil 7, which overcomes the upward tilting force of the other end of the pencil 7 due to the downward cutting component of the abrasive belt 408, and at the same time, the pressing adjustment mechanism adapts to the size of the pencil 7 and does not affect the consistency of the point cutting of the pencil 7.

Similarly, when cutting, there is only one pencil 7 in the gap between the lower surface of each flat pressing plate 303 and the belt 206.

Fifth, the cutting unit

Referring to fig. 1, 2, 9, 10, 11 and 14, the cutting unit 4 includes an upper tool rest 401, a middle tool rest 402, a lower tool rest 403, a tilt sensor 404, a No. 1 abrasive belt transmission wheel 406, a No. 2 lock nut 407, an abrasive belt 408, a motor support base 409, a servo motor 410, an abrasive belt transmission shaft 411, an adjusting screw 412, a guide rod 413, an upper adjusting nut 414, a lower adjusting nut 415, a No. 2 abrasive belt transmission wheel 416, an adjusting shaft 417 and a taper adjusting mechanism.

Referring to fig. 1 and 9, the screw 412 is welded to the center of the upper surface of the upper tool holder 401; the axis of the screw 412 is perpendicular to the upper surface of the upper tool rest 401; the screw rod 412 penetrates through a through hole on the upper top plate 601, the lower adjusting nut 415 is screwed on the screw rod 412, and the upper surface of the lower adjusting nut 415 is contacted with the lower surface of the upper top plate 601; the upper adjusting nut 414 is screwed on the screw rod 412, and the lower surface of the upper adjusting nut 414 is in contact with the upper surface of the upper top plate 601; the two guide rods 413 are respectively and fixedly arranged on the left side and the right side of the upper surface of the upper tool rest 401, and the axes of the two guide rods 413 are perpendicular to the upper surface of the upper tool rest 401; the two guide rods 413 respectively penetrate through holes of the upper top plate 601, and are in clearance fit to play a role in guiding; the upper tool rest 401 and the middle tool rest 402 are welded into a whole; the upper end of the rear side of the lower tool holder 403 is connected with the lower end of the rear side of the middle tool holder 402 by a hinge;

referring to fig. 1, 9 and 10, the taper adjusting mechanism includes a lower screw 405, a hinge 418 No. 1, a hinge 419 No. 2, a lock nut 420 No. 1, a taper adjusting sleeve 421 and an upper screw 422; the upper screw 422 is connected with the lower surface of the front end of the middle tool rest 402 through a No. 2 hinge 419; the lower screw 405 is coupled to the front side of the lower blade holder 403 by a No. 1 hinge 418; the thread turning direction of the lower end part of the upper screw rod 422 is opposite to that of the upper end part of the lower screw rod 405; the thread turning direction of the threaded hole at the upper end of the taper adjusting sleeve 421 is the same as that of the lower end of the upper screw 422; the No. 1 locking nut 420 is screwed on the thread section at the lower end part of the upper screw 422; the thread turning direction of the threaded hole at the lower end of the taper adjusting sleeve 421 is the same as the thread turning direction of the upper end of the lower screw 405;

referring to fig. 1, 9, 11 and 14, an arc through hole is formed in the left side of the lower tool holder 403 for passing through the adjusting shaft 417, and the arc through hole is in clearance fit with the adjusting shaft 417; the No. 1 abrasive belt transmission wheel 406 is fixedly connected with the middle part of an adjusting shaft 417 through a flat key, and the No. 2 locking nut 407 is screwed on a thread section at the front side of the adjusting shaft 417;

the abrasive belt transmission shaft 411 is arranged in a through hole on the right side of the lower tool rest 403, and the No. 2 abrasive belt transmission wheel 416 is fixedly connected to the abrasive belt transmission shaft 411 through a flat key; the front end of the abrasive belt transmission shaft 411 is connected with a motor shaft of the servo motor 410 through a coupler; the servo motor 410 is fixed on the motor support seat 409 through bolts; the rear end of the motor supporting seat 409 is fixed on the side surface of the front end of the lower tool rest 403 through a bolt; the abrasive belt 408 is sleeved on a No. 1 abrasive belt driving wheel 406 and a No. 2 abrasive belt driving wheel 416;

referring to fig. 1, 9, 11, 14 and 15, in the rectangular coordinate system, in the XOZ plane, the included angle between the abrasive belt 408 and the rotating upper surface of the belt 206 is α, and the size of the angle α represents the feeding amount of the abrasive belt 408 for sharpening the pencil 7; when the angle alpha needs to be adjusted, the No. 2 locking nut 407 is loosened, the position of the adjusting shaft 417 on the arc long through hole at the left side of the lower tool rest 403 is adjusted, and after the adjustment is completed, the No. 2 locking nut 407 is screwed, so that the adjusting shaft 417 is fixed on the lower tool rest 403;

referring to fig. 1, 9, 11, 14, 15, the up and down position of abrasive belt 408 relative to the upper surface of belt 206's revolution determines the starting position of abrasive belt 408 for sharpening pencil 7; when the up-down position of the abrasive belt 408 relative to the rotary upper surface of the belt 206 needs to be adjusted, the upper adjusting nut 414 or the lower adjusting nut 415 is loosened, and the upper adjusting nut 414 or the lower adjusting nut 415 is rotated to enable the upper tool holder 401 to ascend or descend, so that the purpose of adjusting the up-down position of the abrasive belt 408 is achieved; after adjustment, the upper adjustment nut 414 or the lower adjustment nut 415 is tightened to secure the upper tool holder 401 to the upper top plate 601.

Referring to fig. 1, 9, 11, 14, and 15, in the rectangular coordinate system, in the YOZ plane, an included angle between the abrasive belt 408 and the rotating upper surface of the belt 206 is β, and the size of the angle β represents the taper of the tip of the pencil 7 after the abrasive belt 408 sharpens the pencil 7; when the angle β needs to be adjusted, the taper adjusting sleeve 421 is rotated, and the thread direction of the lower end of the upper screw 422 is opposite to the thread direction of the upper end of the lower screw 405, so that the upper screw 422 and the lower screw 405 are simultaneously screwed into or out of the threaded hole of the taper adjusting sleeve 421, and the purpose of adjusting the front-back inclination angle of the lower tool rest 403 is achieved; after adjustment is completed, the No. 1 locking nut 420 is rotated, so that the lower end face of the No. 1 locking nut 420 is tightly close to the upper end face of the taper adjusting sleeve 421, and the purpose of preventing the taper adjusting sleeve 421 from loosening due to vibration is achieved, namely the purpose of loosening is achieved;

referring to fig. 9 and 11, the tilt sensor 404 is mounted on the lower surface of the left side of the lower tool holder 403, and is used for detecting the change of the front-back tilt angle and the left-right tilt angle of the lower tool holder 403; the tilt sensor 404 is connected with the controller 8 through a wire;

sixthly, a collecting unit

Referring to fig. 2 and 13, the collecting unit 5 includes a sloping plate 501 and a non-defective product collecting box 502.

Referring to fig. 2 and 13, the left lower end of the inclined plate 501 is connected with the right side of the qualified product collecting box 502 through a hinge; the right upper end of the inclined plate 501 is arranged on the left side of the left revolution surface of the belt 206, and the distance from the right side edge of the right upper end of the inclined plate 501 to the left revolution surface of the belt 206 is 0.1-0.3 mm. The inclined plate 501 and the qualified product collecting box 502 are respectively fixed on the upper surface of the lower bottom plate 605;

the working principle of the pencil sharpening device is as follows:

firstly, installing a pencil sharpener according to figures 1-15; before the pencil 7 is cut, various parameters of the pencil sharpener are adjusted according to information such as the model, the pencil point taper and the shape of the pencil 7 to be machined.

When the pencil is cut, the pencil 7 in the Y-shaped feeding hopper 101 falls on the upper surface of the pushing platform 105, and the pushing slide block 108 is driven by the hydraulic cylinder 106 to push the pencil 7 onto the lower belt 206; the pencils 7 are driven by the belt 206 to move together from right to left, and when the pencils 7 enter the gap between the belt 206 and the inclined pressing plate 304, the pencils 7 start to rotate due to the friction force between the inclined pressing plate 304 and the pencils 7; at the same time, abrasive belt 408 begins to cut the end of pencil 7; as pencil 7 moves from right to left, abrasive belt 408 is continuously cutting pencil 7; the pencil 7 moves to the left and sequentially passes through the two left flat extrusion plates 303; the gap between each flat pressing plate 303 and the belt 206 can only allow one pencil 7 to pass through at the same time; the gap between the inclined pressing plate 304 and the belt 206 can only allow one pencil 7 to pass through at the same time; the pencil 7 passes through the left flat pressing plate 303 and falls into the qualified product collecting box 502 of the collecting unit 5, and the sharpening is finished; in the cutting process, various sensors collect corresponding signals and record corresponding data. After the shaving is completed, the operating program is shut down and the power is turned off.

The embodiments of the present invention are described in order to facilitate those skilled in the art to understand and apply the present invention, and the present invention is only an optimized embodiment or a preferred embodiment, so the present invention is not limited to the description of the embodiment. If the related technical personnel make equivalent structural changes or various modifications without creative efforts while adhering to the basic technical solution of the present invention, the protection scope of the present invention is covered.